Incandescent-lamp socket.



UNITED sfnlfrns PATENT orrrcn.

resumen offescHsNBnENEr., e

HIMSELF, ONE-HALF To Josas-PH" e ALL or Unwired-rumors.-

caeo, renners; asf-normaal* oNE-rioI-IRTH "ro ssrn, AND oituroun'rn 'ro ossea H. E. FRITZ,

' 'IieoANDEshcE-NT-LAMP SOCKET.

Specification of Letters Patent.

raient-ea Feb. s, 1910.

Appnqau'o'n ined February 27321909. serial No. 480.377.

. ,tb atl inkom it' Imay concern: A

' .Be it lnowlithat I, Fnuonion C. serruri- 'i nnrxnn, a' citizen of ythe United. States, residl ing at Chicago, inl the county of Cook and," State-of Illinois', have invented certain new and useful Improvements in' incandescent- Lamp Sockets, of which the following is a specification;reference being had to the ac- A"'conufianying drawings.

" `My invention relates to incandescent lamp sockets, and has particularly to do with socketsprovided with a single pull cord for turning the light on and ott'. y i lthasl for its objectl to provide an im `proved and simplified construction by which the number of parts will'be greatly reduced and the construction in` other respects siniplied, strengthened and cheapened. I accomplish this object qas illustrated in the drawings and as hereinafter described.

lVhat- I regard'as new is set forth in theclaim.

'In the accompanying drawingsFigure 1 is a.l partial'sectlonal View of my improved socket; Fig. 2 1sa perspective View ofthe body or support in or on which the severalV operating parts of the device are mounted; Fig. 3 is a perspective View showing the main pivot or shaft illustratingr the manner in which the main operating spring is mounted; Fig. 4t is a perspective View of the ratchet-wheel; Figf, is a View showing the other side of the ratchet-wheel; Fig. G' is a perspective View of the pulley; Fig.. T is a plan View of the body or support; Fig. 8 is av sectional View of the base; and Fig, 9 is a partial sectionalview, taken at right angles to that shown in Fig. 8.

`Referring' to the drawings-8l indicates the body or support, which, generally speaking, isv cylindrical in form and 1s made of porcelain, fiber, or any other' suitable nonconductor.v l `The body Sis adapted to be inclesed in the-.usual metallic shell provided with the .u'sual removable cap-piece 10,` as shownl in Fig. 1'. Itis also provided at its lower end with theusual brass screw-threadf ed socket 11l into which the incandescent ,bulb is screwed in the usual way.-

12findioates a pulley, which is mounted in the body 8 in a verticalposition, being supported -by a horizontal pivot or shaft 13 suitably secured in the body, as best shown in Fig. 9.

l 14 indicates a nut screwed upon the end of the pivot 1 3 to hold it in position.

. 1.5 indicates a coiled spring, one end .of which is secured to the pulley 12, its other end'` being fitted in a slotin the head of the pivot 13, as shown in Fig.- 3. Said spring serves to return the pulley 12 to its normal l position after each operation thereof.

16 indicates a. cham, which extends around y the pulley 12 and is connected thereto at one end, as shown at 17 in Fig.` 1. Thechain 1G extends .over the upper portion of the pulley, thence around over the' lower portion thereofand out through a tubular opening' 1"3 in the sliell' 9, as shown in Fig. 1. Thus bypulling down on the chain 16the pulley 12 may be' rotated, and vafter being so rotated is lreturned to its normal position by i the spring 15. At one side the pulley 12 is vvprovided with a projecting pin 19 whichmores between lugs 20-21 in ay plate 22 which is secured to the body 8, as' shown in Figs. Y1 and 2, said lugs serving as limit stops to prevent excessive rotation of said pulley. v

23 indicatesa` ratchetwheel, which is also` a switch, and serves to makel and break the circuit between the line wires and the lamp. Said ratchet-wheel is constructed as shown in Figs. #t and` 5. -\t one side thereof it is provided with ratchet-teeth 2e, preferably four in number, which are arranged around the axis of said ratchet-wheel. Saidratchetwheel tits upon the pivot 13v at one side of the pulley12,;the latter being lnovided with a spring-pawl 25 which lprojects laterally andV is adapted toengage the 1atchet-teeth 2l, the

arrangement being sucht'hat when the chain lo is pulled down the rotation of the pulley 12 thereby-effected causes the ratchet-wheel 23 to rotate through an are of ninety degrees. The return movement of the pulley l2, however.. does not rotate the ratchet-wheel` which il .is held against-reverse rotation by a springortion the Vbody under' ten-Sion.

and I', the periphery of tile ratchet-wheel 23 with tour ratchet teeth 99,

aooye euggfsted, theratchet- :leid against reverse rotation.

3G 'indieatea tyco segmental Contact piates secured upon the periphery 'of the ratchetyyheel at, diametrically opposite points. Said plate.q extend through are@ ot" about ninety degrees so that they coyer the periph` ery ot` the ratchet-Wheel between successive ratchet-teeth 59. That portion of the periphery ot the ratchet- Wheel between the plates 1:20 a non-conductor. preferably the upper portion ot' 'the Wheel being` made of a liber. or other yuitalile `nonconductor. the contact platt-fs4 il() lueinf; of lai-aes. or other suitable eontluetincr material. which ie: secured to the Wheel. The plateel 30 are conneeted together by a metallic ring` 3l fitted againet the Aside oi the ratchetn'heel 23 oppoeite the ratehebteeth 24..;5 Shown'in Fig. 5. Said ring` is preferably integral with thel platee` PEO. afl ehon'n in Vig. and aeryef as a means ot Connecting;` the plates 30 with one ot the polesA ot.' the lamp through a contact plate l2 best shown m Figs. 2 and 8. Said plate is made ot spring brasa or other suitable. conductor. and is Secured at ite-lower end to the body S hy a screw 33 'which also Aeer-yes to connect the lamp Socket il thereto- Said screw forming one of the contact pieces tor the lamp inthe usual nay. AS Shown in Fig. t?, it is insul: ed from the brass socket l1 oy a piece oi nnca Sli. or other Suitable material. in the usual wayF Thus the brass socket ll forms one'ot' the contact piece@I of.

the lamp and the Screw 53 vforms the other. The upper end oie ine plate 32 extends up to and around thepiyot '13, having a hole 35 therein through which Said pivot passes. The upper end oi. said plate is not secured directly to the bony 3. hut stands out a Short distance from the hotly so as to hear against thel plate 8l oi the ratcliet-nheelf, as best Shown in Fig. Sl. 'By this construction the )late 32 is always held yieldingly in contact- 'with tfie dish' 3l and is in electrical connectne periphery of s shown in Figs. e,

f engagement of which with the* 'wheel 13.

352 indieatesa-bindin-post 'for a limewire Said binding-'post is eletricallj? con; nected "Withsucrew 27 throiigh a metallic plate B'indicatesa 'second binding-ptet, forthe other'linerjywire 39, said bindingpoet. being lconnected oy a plate @fend fuse il with the Vplate-i2 and throughit Witli'the ecre\'r-ocket l1 fou a Screw '12.

From the foregoing description it will seen that when the spring Contact paWl z bears upon one of the plates 30 of the ratchet- Wheel Q3 the hinding-ppst with thcscrew contact 33 through said paw! '26, the contact plates 30, the disk 31 and plate 3:?. When, however, the pavvvlQG is in contact- With one o1 the nonconducting seg;- mentS ot the Wheel Q3 the Contactl -point 35.55 not in electrical connection itith the Screw contact ,233*the circuit then fore, that by rotating the pulley l2 by means of the chain '116 Ythe circuit through the lamp may b`e closed or opened as desired.

While' my improved soeket is intended primarily to have the lamp secured directly thereto as a part thereof. it will be understood that that portion which holds/the lamp may be omitted and the Socketused aS a Wall or generhl Snap switch, and the claim hereinafter made therefore, to be construed accordingly.

That ivhich I claim as my invention. and deeire to secure by Letters'Patent, ie`- n incandescent-lamp socket, comln'ising a hotly. a pivot mounted therein, a pulley,- mounted on said pivot. a disk mounted on said piyot adjacent to said pulley and having conducting and non=conduoting segments. ratchet mechanism between said pulley and said disk for rotating said disk from @aid pulley when the pulley is rottited in one direction. a .Stop-plate secured to the body and having stops't'or limiting 4the rotation of eaicl pulley` and a pin carried hy lQaicl pulley and engaging said Stops.

yFREDRK C. .-lSCllENBRENER.

being] broken Athrough the-lamp. It will be obvious, there- 55 35- is connected 

